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For the Inventor, By the Inventor

Tokyo, Japan

Masamichi Tsuchiya

This inventor holds 4 USPTO granted patents. Top assignee: Tokyo Weld Co., Ltd.. Active years: 2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Tsuchiya. Retrieved from https://idiyas.com/inventor/masamichi-tsuchiya

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 2

Forward Citations = 10(Granted Patents)


Location History:

  • Tokyo, JP (2003)
  • Tokyo-To, JP (2003)
  • Ota-Ku, JP (2003)

Company Filing History:

goldMedal4 out of 18 
 
Tokyo Weld Co., Ltd.
 patents

Years Active: 2003

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4 patents (USPTO):Explore Patents
1. 6642721 - Method of measuring insulation resistance of capacitor and insulation resistance measuring apparatus of the same (2003-11-04),
2. 6621261 - Work inspection apparatus (2003-09-16),
3. 6565309 - Polarity inversion apparatus and polarity inversion method for chip components (2003-05-20),
4. 6504384 - Apparatus of measuring capacitance and method thereof (2003-01-07),

Title: Masamichi Tsuchiya: Innovator in Insulation Resistance Measurement

Introduction

Masamichi Tsuchiya is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical engineering, particularly in the measurement of insulation resistance. With a total of 4 patents to his name, Tsuchiya's work has advanced the technology used in various electrical applications.

Latest Patents

One of Tsuchiya's latest patents is a method of measuring insulation resistance of capacitors and an insulation resistance measuring apparatus. The invention aims to provide a quick, easy, and precise way to measure the insulation resistance of capacitors. The apparatus includes a variable/constant-voltage power source, a voltmeter, an intermittent circuit, and a constant-current supply circuit, among other components. This innovative design allows for the insulation resistance to be measured accurately in a short time frame.

Another significant patent is a work inspection apparatus that features a rotating turntable with multiple work holding pockets. This apparatus is designed to inspect the electric characteristics of works held in the pockets. A measuring electrode contacts the works for inspection, and a polishing member is included in at least one of the pockets to maintain the electrode's effectiveness.

Career Highlights

Masamichi Tsuchiya is currently employed at Tokyo Weld Co., Ltd., where he continues to develop innovative solutions in electrical measurement. His expertise and inventions have made a considerable impact on the industry, enhancing the efficiency and accuracy of electrical testing.

Collaborations

Tsuchiya has collaborated with notable colleagues such as Takamasa Nagasawa and Akira Takeoka. Their combined efforts have contributed to the advancement of technology in their field.

Conclusion

Masamichi Tsuchiya is a distinguished inventor whose work in insulation resistance measurement has paved the way for improved electrical testing methods. His patents reflect a commitment to innovation and excellence in engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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